CVE Intelligence
Medium Cross-site scripting

CVE-2026-12749 — Cross-site Scripting (XSS) in Ibm Cloud Pak For Business Automation

IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Published Sep 15, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database · CNA: psirt@us.ibm.com

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
—
No EPSS score.
Affects
Ibm
Cloud Pak For Business Automation
CVSS base
5.4
Medium · 2 source(s)
Prioritization reference: 6.4 provisional

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

  • Documented patch — www.ibm.com (NIST National Vulnerability Database)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Ibm Cloud Pak For Business Automation).
  2. Apply the fixed version or the patch documented under Remediation.
  3. Exploitation requires user interaction: tighten email/web filtering and warn affected users.
  4. Search available logs for exploit probes matching the vulnerability class (cross-site scripting), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Ibm Cloud Pak For Business Automation version 24.0.1-interim_fix_003version 26.0.0-interim_fix_001version 26.0.0version 25.0.0-interim_fix_005version 25.0.0-interim_fix_004version 25.0.0-interim_fix_003version 25.0.0-interim_fix_002version 25.0.0-interim_fix_001
and 19 more version 25.0.0version 24.0.1-interim_fix_008version 24.0.1-interim_fix_007version 24.0.1-interim_fix_006version 24.0.1-interim_fix_005version 24.0.1-interim_fix_004version 24.0.0version 24.0.1-interim_fix_002version 24.0.1-interim_fix_001version 24.0.1version 24.0.0-interim_fix_009version 24.0.0-interim_fix_008version 24.0.0-interim_fix_007version 24.0.0-interim_fix_006version 24.0.0-interim_fix_005version 24.0.0-interim_fix_004version 24.0.0-interim_fix_003version 24.0.0-interim_fix_002version 24.0.0-interim_fix_001
Vulnerable NIST National Vulnerability Database

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
6.4 CVSS 3.1 Medium 3.1 2.7 psirt@us.ibm.com via NIST National Vulnerability Database
5.4 CVSS 3.1 Medium 2.3 2.7 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N (score shown at the top: nvd@nist.gov)
Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 6.4 (psirt@us.ibm.com via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-79 · Cross-site Scripting (XSS)

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Monitor CSP violation reports and script payloads in reflected parameters.
web/proxy/WAF logsnetwork IDS/IPSapplication logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Record published
    Oct 15, 2026
  • Fix documented
    Oct 15, 2026 · NIST National Vulnerability Database
  • CVSS changed · 5.4
    Oct 15, 2026 · NIST National Vulnerability Database
  • Source status changed · → Analyzed
    Oct 15, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 15, 2026 · NIST National Vulnerability Database
  • CVE published
    Sep 15, 2026 · psirt@us.ibm.com

Source activity

Repeated readings are counted rather than listed.

  • 1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

1 on the record

Elsewhere on this site

Ibm
every CVE for this vendor
Cross-site scripting
same class
CWE-79
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-12751 IBM Cloud Pak for Business Automation is vulnerable to HTML injection. A remote attacker… Sep 15, 2026
  • CVE-2026-12750 Cross-site Scripting (XSS) in Ibm Cloud Pak For Business Automation Sep 15, 2026
  • CVE-2026-81859 Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for August 2026. Sep 4, 2026
  • CVE-2026-12762 Insertion of Sensitive Information into Externally-Accessible File in IBM Business Automation Insights Aug 5, 2026
  • CVE-2025-36094 Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for January 2026. Feb 3, 2026
  • CVE-2025-36436 Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for January 2026. Feb 2, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No FIRST EPSS score.
  • No CISA SSVC assessment.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-12749 is "Cross-site Scripting (XSS) in Ibm Cloud Pak For Business Automation", rated Medium. It affects Cloud Pak For Business Automation (Ibm); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.4 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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